When you come to the fence, you can see a notice ____________ there saying,“_________ the grass.”

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A．putting up, Keep back

B．put up; Keep off

C．putting up, Keep away from

D．put on, Keep out

At a rough estimate, Nigeria is _________ Great Britain.

[　　]

A．three times the size as

B．the size three times of

C．three times at the size of

D．three times the size of

--_______ I go out to play now, mum?

--No, you ________ You should do your homework first.

[　　]

_____, the population of China is the largest in the world.

[　　]

A．It is well known that

B．As is well known

C．Which is well known

D．We all know

In the darkness, there wasn't a single person _____ she could turn for help.

[　　]

A good many trees ____ in this part of the country by the end of last year.

[　　]

A．have been planted

B．had been planted

C．would be planted

D．were planted

Do you really think it is a problem ______?

[　　]

A．is worth paying attention

B．worth paying attention to

C．is worth to pay attention

D．worth being paid attention to

A new cinema _____ here. They hope to finish it next month.

[　　]

Not the wonderful views but the warmth of the host _____ moved us all.

[　　]

It was three to nine and all the family were waiting before the TV set to see the ________broadcast of the CBA basketball game.

[　　]